"These credentials do not match our records."
if you got this message when trying to Log In, it simply means either your Email Address or your Password is wrong, Try to enter the correct details and also note that the passwords are case sensitive.
If perhaps you forgot your Login credentials, just click on the Forgot Password? Link in the Login page, you will get an Email to reset your password, then you can Re-Login with the new credentials after which you can continue with your application.